NVM Temperature Log Row

The NVM Temperature Log Row contains calibration data that are determined and written during production test and cannot be written.

These calibration values are required for calculating the temperature from measuring the temperature sensor in the Supply Controller (SUPC) by the ADC.

The NVM Temperature Log Row can be read at address 0x00806038.

Table 1. Temperature Log Row Bitfields Definition
Bit Position Name Description
7:0 ROOM_TEMP_VAL_INT Integer part of room temperature in °C
11:8 ROOM_TEMP_VAL_DEC Decimal part of room temperature
19:12 HOT_TEMP_VAL_INT Integer part of hot temperature in °C
23:20 HOT_TEMP_VAL_DEC Decimal part of hot temperature
31:24 ROOM_INT1V_VAL 2’s complement of the internal 1V reference drift at room temperature (versus a 1.0 centered value)
39:32 HOT_INT1V_VAL 2’s complement of the internal 1V reference drift at hot temperature (versus a 1.0 centered value)
51:40 ROOM_ADC_VAL Temperature sensor 12bit ADC conversion at room temperature
63:52 HOT_ADC_VAL Temperature sensor 12bit ADC conversion at hot temperature
Important: Hot temperature corresponds to the maximum operating temperature +/- 5%, hence 85°C +/- 5% (package grade 'U') or 125°C +/- 5% (package grade 'F').
Table 2. Temperature Log Row Mapping
Offset Bit

Pos.

 Name
0x00 7:0 ROOM_TEMP_VAL_INT
0x01 15:8 HOT_TEMP_VAL_INT ROOM_TEMP_VAL_DEC
0x02 23:16 HOT_TEMP_VAL_DEC HOT_TEMP_VAL_INT
0x03 31:24 ROOM_INT1V_VAL
0x04 39:32 HOT_INT1V_VAL
0x05 47:40 ROOM_ADC_VAL
0x06 55:48 HOT_ADC_VAL ROOM_ADC_VAL
0x07 63:56 HOT_ADC_VAL
Parent topic: NVM Rows